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Answer :
Final answer:
The student should use a volume of 37.9 mL of methanol to obtain the required 30.0 g.
Explanation:
To measure the volume of a liquid in a graduated cylinder, you need to mentally subdivide the distance between the marked measurements. In this case, the student needs to measure 30.0 g of methanol. The density of methanol at 25˚C is given as 0.7914 g/mL. By dividing the mass of methanol (30.0 g) by its density (0.7914 g/mL), we can find the volume:
Volume = Mass / Density = 30.0 g / 0.7914 g/mL = 37.9 mL
Therefore, the student should use a volume of 37.9 mL of methanol to obtain the required 30.0 g.
Learn more about Determining volume from mass here:
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